SQL Join multi tables - mysql

Question

I got these 3 tables:
fieldValues|values|formCustomizeValues |
-----------|------|--------------------|
FieldID |ID |FormCustomizeFieldID|
ValueID |Name |FieldID |
| |ValueID |
-----------|------|--------------------|
And the data on these tables looks like this:
fieldValues|values|formCustomizeValues|
-----------|------|-------------------|
4 |1 |1 |
1 |James |4 |
-----------|------|3 |
4 |2 |-------------------|
2 |Ben |
-----------|------|
|3 |
|Daniel|
What i'm trying to do is to get all the values for the specific field.
so lets say i want to grab all the values with the FieldID that equals to 4, i should get:
James
Ben
Daniel
But i tried 5 different queries and the only things i'm getting is or James, Ben or Daniel.
This is the query that returning me zero results:
SELECT v.* FROM `fieldValues` fv
LEFT JOIN `values` v ON fv.ValueID = v.ID
LEFT JOIN formCustomizeValues fcv ON fcv.FieldID = fv.FieldID AND fcv.ValueID = v.ID
WHERE fv.FieldID = 4 AND fcv.FormCustomizeFieldID = 1
And that query returning me only James, Ben:
SELECT v.* FROM `fieldValues` fv
LEFT JOIN `values` v ON fv.ValueID = v.ID
LEFT JOIN formCustomizeValues fcv ON fcv.ValueID = v.ID
WHERE fv.FieldID = 4
How can i get them all together?
Any help will be appreciated!!
Thanks!
Here is SQLfiddle link: http://sqlfiddle.com/#!2/43b56/1

Answer 1

This is what you want :
1 Query to retrieve names via fieldValues
1 Query to retrieve names via formCustomizeValues
Union to join both result
The query :
SELECT
v.`Name`
FROM
`values` v
INNER JOIN `fieldValues` as fv
on v.`ID` = fv.`ValueID`
and fv.`FieldID` = 4
UNION
SELECT
v.`Name`
FROM
`values` v
INNER JOIN `formCustomizeValues` as fcv
on v.`ID` = fcv.`ValueID`
and fcv.`FieldID` = 4
Here the SQLFIDDLE UPDATED

Answer 2

Setting aside any criticisms of the schema design…
SELECT v.name
FROM `values` v
LEFT JOIN `fieldValues` fv ON fv.ValueID = v.ID
LEFT JOIN `formCustomizeValues` fcv ON fcv.ValueID = v.ID
WHERE fv.FieldID = 4
OR fcv.FormCustomizeFieldID = 1
;
Updated Fiddle.
Update
I see now that your first query that you said resulted in no rows was actually pretty close. You want all the rows from values that are defined in either fieldValues or formCustomizeValues. Using AND results in no rows because no row meets both conditions. Therefore you want to use OR or use a UNION as Ryx5 has suggested.
SELECT v.name
FROM `values` v
LEFT JOIN `fieldValues` fv ON fv.ValueID = v.ID
LEFT JOIN `formCustomizeValues` fcv ON fcv.ValueID = v.ID
WHERE fv.FieldID = 4
OR fcv.FormCustomizeFieldID = 1
;
Updated updated Fiddle.